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Free & Instant Estimate

Countertop Square Footage
Calculator

Measure your countertop area and get instant material cost estimates for laminate, granite, quartz, and marble.

100% FreeUp to 10 SectionsInstant Results
Measurement Unit
Countertop Sections

= -- sqft

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How It Works

Get your countertop measurement in three simple steps.

Measure Each Section

Use a tape measure to record the length and width of each rectangular countertop section in inches or feet.

Enter Your Dimensions

Add up to 10 sections with individual length and width. Toggle between inches and feet as needed.

Get Your Estimate

Instantly see total square footage with waste allowance and material cost estimates for four popular surfaces.

Tips for Accurate Countertop Measurement

Getting precise measurements is key to avoiding costly material shortages or waste. Follow these best practices when measuring your countertop area.

Clear the Surface

Remove all appliances, canisters, and decorative items so you can measure the full countertop length and depth.

Measure Twice

Always double-check measurements. A small error in length or width gets magnified when calculating area.

Round Up, Not Down

It is better to order slightly more material than to fall short. Round partial inches up to the next whole number.

Standard Depth

Most kitchen countertops are 25-25.5 inches deep. Islands and peninsulas may be wider — always measure, don't assume.

Account for Cutouts

Sink and cooktop cutouts do not reduce your material order — fabricators cut from full slabs, so include the full area.

Use the Waste Factor

A 10% waste allowance covers cuts, seam matching, and template adjustments. Use 15% for complex layouts with angles.

Countertop Material Cost Comparison (2026)

Typical installed cost-per-square-foot ranges for the most popular countertop materials.

MaterialLow ($/sqft)High ($/sqft)
Laminate$10$40
Granite$40$100
Quartz$50$120
Marble$75$200

Prices include both material and professional installation. Actual costs vary by location, slab selection, edge profile, and layout complexity.

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Frequently Asked Questions

Common questions about measuring countertop square footage answered.

Measure the length and width of each countertop section in inches. Multiply length by width to get the area in square inches, then divide by 144 to convert to square feet. Add all sections together for the total. If you measured in feet, simply multiply length by width directly.
The average kitchen has 30-50 square feet of countertop space, though this varies widely based on kitchen size and layout. An L-shaped kitchen typically needs 30-40 sqft, while a large kitchen with an island may need 50-70 sqft. Measure each section and use the calculator above for an exact number.
Yes. The industry standard is a 10% waste allowance to account for cuts, sink and cooktop cutouts, seam matching, and unexpected adjustments. For layouts with many angles or curves, consider 15%. Our calculator defaults to the industry-standard 10%.
Laminate is the most affordable option at $10-$40 per square foot installed. It offers a wide selection of styles and colors with good stain resistance. For a mid-range budget, granite and quartz deliver excellent durability and resale value.
Break the L-shape into two separate rectangles. Measure the length and width of each leg independently, then enter them as separate sections in the calculator. This method works for U-shapes, peninsulas, and any irregular layout — just divide it into the smallest rectangles possible for the most accurate total.

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